Home / 2,139.98-2,950.26-1,601.12

Finding the Fourth Proportional to 2,139.98, 2,950.26 and 1,601.12

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Solution

The fourth proportional to 2,139.98, 2,950.26 and 1,601.12 is: 2,207.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,139.98 : 2,950.26 = 1,601.12 : x
  2. Step 2: Convert to fraction form
    2,139.98/2,950.26 = 1,601.12/x
  3. Step 3: Cross multiply
    2,139.98x = 2,950.26 × 1,601.12
  4. Step 4: Simplify right side
    2,139.98x = 4,723,720.29
  5. Step 5: Solve for x
    x = 4,723,720.29/2,139.98
  6. Step 6: Final answer
    x = 2,207.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.